Home / 156,919.51-236,233.11-142,969.15

Finding the Fourth Proportional to 156,919.51, 236,233.11 and 142,969.15

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Solution

The fourth proportional to 156,919.51, 236,233.11 and 142,969.15 is: 215,231.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,919.51 : 236,233.11 = 142,969.15 : x
  2. Step 2: Convert to fraction form
    156,919.51/236,233.11 = 142,969.15/x
  3. Step 3: Cross multiply
    156,919.51x = 236,233.11 × 142,969.15
  4. Step 4: Simplify right side
    156,919.51x = 33,774,046,938.56
  5. Step 5: Solve for x
    x = 33,774,046,938.56/156,919.51
  6. Step 6: Final answer
    x = 215,231.66

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.